Sr_(3)ZnNb_(2)O(9):0.3Eu^(3+),xNa^(+)荧光粉的合成和发光性能研究  

Preparation and Luminescence Performance of Sr_(3)ZnNb_(2)O(9)∶0.3Eu^(3+),xNa^(+) Phosphors

作　　者：崔瑞瑞 赵荣力 袁高峰 凌易 邓朝勇 龚新勇 CUI Ruirui;ZHAO Rongli;YUAN Gaofeng;LING Yi;DENG Chaoyong;GONG Xinyong(Key Laboratory of Electronic Composites of Guizhou Province,College of Big Data and Information Engineering,Guizhou University,Guiyang 550025,China;College of Physics,Guizhou University,Guiyang 550025,China)

机构地区：[1]贵州大学大数据与信息工程学院,贵州省电子功能复合材料特色重点实验室,贵阳550025 [2]贵州大学物理学院,贵阳550025

出　　处：《人工晶体学报》2023年第1期132-138,共7页Journal of Synthetic Crystals

基　　金：贵州省科技计划(黔科合基础-ZK[2021]一般328)。

摘　　要：本文通过高温固相反应成功制备了Sr_(3)ZnNb_(2)O(9)∶0.3Eu^(3+),xNa^(+)(x=0,0.1,0.2,0.3,0.4,0.5)系列荧光粉。X射线衍射分析和精修结果表明,Eu^(3+)和Na^(+)成功掺杂到Sr_(3)ZnNb_(2)O(9)基质中,并部分取代了Zn^(2+)。采用扫描电子显微镜测试了样品的微观形貌和元素分布。光谱特性和热稳定性研究表明,Na^(+)的最佳掺杂浓度为x=0.2,Na^(+)的引入提高了Sr_(3)ZnNb_(2)O(9)∶0.3Eu^(3+)荧光粉的热稳定性,活化能为0.163 eV。计算出Sr_(3)ZnNb_(2)O(9)∶0.3Eu^(3+),0.2Na^(+)样品的CIE色坐标为(0.618,0.376),相关色温和色纯度分别为1855 K和98.46%。In this paper,Sr_(3)ZnNb_(2)O(9)∶0.3Eu^(3+),xNa^(+)(x=0,0.1,0.2,0.3,0.4,0.5)phosphors were successfully prepared by high temperature solid-state reaction.XRD patterns and refinement results show that Eu^(3+)and Na^(+)are successfully doped into the matrix and partially substituted Zn^(2+).The microscopic morphology and element distribution of the samples were confirmed by scanning electron microscopy.The spectral characteristics and thermal stability analysis show that the optimal doping concentration of Na^(+)is x=0.2.The introduction of Na^(+)improves the thermal stability of Sr_(3)ZnNb_(2)O(9)∶0.3Eu^(3+)phosphors and the calculated activation energy is 0.163 eV.The CIE color coordinate of the Sr_(3)ZnNb_(2)O(9)∶0.3Eu^(3+),0.2Na^(+)samples is calculated to be(0.618,0.376),the correlated color temperature and the color purity are 1855 K and 98.46%,respectively.

关 键 词：Sr_(3)ZnNb_(2)O(9)∶0.3Eu^(3+) xNa^(+) 高温固相反应 光致发光 热稳定性 

分 类 号：TN312[电子电信—物理电子学]